Shikaku


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Shikaku (also known as Rectangles) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. You have to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle.

Click and drag to draw a rectangle. To remove lines use the right mouse button or hold the Ctrl or the Shift key.

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Shikaku


5x5 Shikaku | 7x7 Shikaku | 10x10 Shikaku | 15x15 Shikaku | 20x20 Shikaku | 25x25 Shikaku

This Month
1. demian2
61
00:03.66
2. numbrr
152
00:05.28
3. coolcoolguy65
83
00:06.17
4. eonhochang
38
00:06.86
5. SelzzupCigol 00:09.14
6. GeorgPfleger
71
00:10.33
7. Travis Howk
32
00:10.58
8. borophyll
23
00:10.84
9. Jbrunt
78
00:11.44
10. BingDwenDwen 00:11.84
11. kingaphrodite 00:12.25
12. Javrem 00:12.50
13. G VOLTT
22
00:12.85
14. ashtonyoung 00:13.13
15. dynesonne 00:13.36
16. IanChen 00:14.98
17. BlueOcarina
70
00:15.27
18. fishysua
96
00:15.38
19. wei weng
5
00:15.56
20. Goomy
19
00:16.27
This Week
1. eonhochang
38
00:06.86
2. coolcoolguy65
83
00:07.82
3. GeorgPfleger
71
00:10.33
4. Jbrunt
78
00:11.44
5. Javrem 00:14.32
6. Goomy
19
00:16.27
7. Sebastián López
9
00:23.79
8. Magical 00:23.85
9. MatiasRF
6
00:24.00
10. MJLS2018 00:28.71
11. haruharu
3
00:29.39
12. jdubs
41
00:30.43
13. chocolateonions
17
00:31.68
14. pzwf007 00:32.60
15. ThunderSnake
4
00:32.91
16. 3142857Pi 00:49.46
17.--- empty -----:--
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Today
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MO3
1. vowels
180
00:04.36
2. demian2
61
00:04.66
3. BingBongBob
89
00:05.15
4. nabifan
76
00:05.27
5. mtanzer
140
00:05.34
6. Vicell
9
00:05.55
7. sfumato
161
00:06.36
8. qqwref
230
00:06.46
9. bearn
139
00:06.96
10. kyrawr8383
69
00:07.59
AO5
1. vowels
180
00:04.48
2. demian2
61
00:04.92
3. BingBongBob
89
00:05.39
4. nabifan
76
00:05.41
5. Vicell
9
00:06.12
6. mtanzer
140
00:06.28
7. qqwref
230
00:06.46
8. sfumato
161
00:06.68
9. bearn
139
00:07.20
10. PuzzleMaestro
51
00:07.90
AO12
1. vowels
180
00:05.39
2. BingBongBob
89
00:05.84
3. demian2
61
00:06.31
4. nabifan
76
00:06.91
5. Vicell
9
00:07.26
6. sfumato
161
00:07.41
7. qqwref
230
00:07.49
8. mtanzer
140
00:07.81
9. bearn
139
00:08.34
10. Icay
114
00:08.97
Robots / programmatic solversinfo  
1.tlstyer
1315
00:00.009
2.Charlie Li
60
00:00.707
3.--- empty -----:--

* MO3 - Mean of 3. The average of 3 consecutive times.
AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest.
AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest.
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2023-03-29 02:36:47

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